79c8afdba8
To have the same path (starting with `ol/`, without `.js`) as in the documentation. The support was added in the webpack config in #8928
94 lines
1.9 KiB
JavaScript
94 lines
1.9 KiB
JavaScript
import Feature from 'ol/Feature';
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import Map from 'ol/Map';
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import View from 'ol/View';
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import Point from 'ol/geom/Point';
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import VectorLayer from 'ol/layer/Vector';
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import VectorSource from 'ol/source/Vector';
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import {Fill, RegularShape, Stroke, Style} from 'ol/style';
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const stroke = new Stroke({color: 'black', width: 2});
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const fill = new Fill({color: 'red'});
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const styles = {
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'square': new Style({
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image: new RegularShape({
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fill: fill,
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stroke: stroke,
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points: 4,
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radius: 10,
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angle: Math.PI / 4
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})
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}),
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'triangle': new Style({
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image: new RegularShape({
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fill: fill,
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stroke: stroke,
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points: 3,
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radius: 10,
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rotation: Math.PI / 4,
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angle: 0
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})
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}),
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'star': new Style({
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image: new RegularShape({
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fill: fill,
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stroke: stroke,
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points: 5,
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radius: 10,
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radius2: 4,
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angle: 0
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})
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}),
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'cross': new Style({
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image: new RegularShape({
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fill: fill,
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stroke: stroke,
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points: 4,
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radius: 10,
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radius2: 0,
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angle: 0
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})
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}),
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'x': new Style({
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image: new RegularShape({
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fill: fill,
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stroke: stroke,
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points: 4,
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radius: 10,
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radius2: 0,
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angle: Math.PI / 4
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})
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})
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};
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const styleKeys = ['x', 'cross', 'star', 'triangle', 'square'];
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const count = 250;
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const features = new Array(count);
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const e = 4500000;
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for (let i = 0; i < count; ++i) {
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const coordinates = [2 * e * Math.random() - e, 2 * e * Math.random() - e];
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features[i] = new Feature(new Point(coordinates));
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features[i].setStyle(styles[styleKeys[Math.floor(Math.random() * 5)]]);
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}
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const source = new VectorSource({
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features: features
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});
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const vectorLayer = new VectorLayer({
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source: source
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});
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const map = new Map({
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layers: [
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vectorLayer
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],
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target: 'map',
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view: new View({
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center: [0, 0],
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zoom: 2
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})
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});
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